One parameter model for strength properties of hardenable aluminium alloys

One parameter model for strength properties of hardenable aluminium alloys
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DOI:
10.1016/j.matdes.2008.02.001
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发表时间:
2008
期刊:
影响因子:
8.4
通讯作者:
J. Zander;R. Sandström
J. Zander;R. Sandström
中科院分区:
材料科学1区
文献类型:
--
作者:
J. Zander;R. Sandström

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提出了商用铝合金强度性能的模型。所研究的合金组是2000(Al-Cu和Al-Cu-Mg)、6000(Al-Mg-Si)和7000(Al-Zn-Mg)系列的可硬化合金。固溶体硬化的相同模型已成功地应用于不可硬化的合金已被使用。对于沉淀硬化,颗粒切割和Orowan机制已被考虑。相同的基本模型用于所有强度特性。它表明,与一个拟合参数为每个属性,可以得到一个合理的精度表示,适用于各种合金。这些模型在材料优化和选择中是有用的。
Models for strength properties are proposed for commercially aluminium alloys. The alloy group investigated are the hardenable alloys from the 2000 (Al–Cu and Al–Cu–Mg), 6000 (Al–Mg–Si) and 7000 (Al–Zn–Mg) series. The same model for solid solution hardening that has successfully been applied to non-hardenable alloys has been used. For precipitation hardening, particle cutting and the Orowan mechanism have been considered. The same basic model is used for all strength properties. It is demonstrated that with one fitting parameter for each property, a representation with reasonable accuracy can be obtained that is applicable to a wide range of alloys. Such models are useful in materials optimisation and selection.